I won't make any jokes about NASA on crack, I really won't. Well, besides that one.
Anyway, I just read on Yahoo!News (I hate to link to them, given their recent shenanigans, but what the heck) that NASA plans to launch the Shuttle Tuesday despite a five-inch-long crack found in the foam insulation on the external tank. This decision is not set in stone, so we'll see. The launch management people are meeting about the issue even as I write this. Stay tuned.